d2912cb15b
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
43 lines
1.2 KiB
C
43 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (C) 2011 Pengutronix
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* Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
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*/
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#include <linux/err.h>
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#include <linux/leds.h>
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#include <linux/platform_device.h>
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#include <linux/slab.h>
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/**
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* gpio_led_register_device - register a gpio-led device
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* @pdata: the platform data used for the new device
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*
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* Makes a copy of pdata and pdata->leds and registers a new leds-gpio device
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* with the result. This allows to have pdata and pdata-leds in .init.rodata
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* and so saves some bytes compared to a static struct platform_device with
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* static platform data.
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*
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* Returns the registered device or an error pointer.
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*/
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struct platform_device *__init gpio_led_register_device(
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int id, const struct gpio_led_platform_data *pdata)
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{
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struct platform_device *ret;
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struct gpio_led_platform_data _pdata = *pdata;
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if (!pdata->num_leds)
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return ERR_PTR(-EINVAL);
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_pdata.leds = kmemdup(pdata->leds,
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pdata->num_leds * sizeof(*pdata->leds), GFP_KERNEL);
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if (!_pdata.leds)
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return ERR_PTR(-ENOMEM);
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ret = platform_device_register_resndata(NULL, "leds-gpio", id,
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NULL, 0, &_pdata, sizeof(_pdata));
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if (IS_ERR(ret))
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kfree(_pdata.leds);
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return ret;
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}
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